The 2023 edition of Chambers Global named Arnold & Porter a "Leading Firm" in 25 practice areas across the globe. Thirty-six attorneys were ranked as "Leading Individuals" across the categories. Chambers Global includes rankings at a regional and global-wide level and ranks the firms best placed to handle complex international mandates.
The following is a list of the firm's 2023 practice area rankings and attorney rankings for Chambers Global 2023:
Practice Areas
- Arbitration (International)–Global Market Leaders; Latin America - International Counsel
- Bankruptcy/Restructuring: Highly Regarded–USA
- Capital Markets–Latin America - International Counsel
- Capital Markets: Securitisation: ABS–USA
- Commercial and Corporate Litigation–United Kingdom
- Competition/Antitrust– Global: Multi-Jurisdictional; USA
- Competition/Antitrust (International & Cross-Border)–USA
- Competition: EU–Belgium
- Corporate Crime & Investigations–USA
- Corporate Investigations–Latin America - International Counsel
- Corporate Investigations/Anti-Corruption–Global: Multi-Jurisdictional
- Disputes (International & Cross-Border)–USA
- Dispute Resolution: International Firm–South Korea
- Intellectual Property: Patent–USA
- Intellectual Property: Trademark, Copyright & Trade Secrets–USA
- International Arbitration: The Elite–USA
- International Arbitration: Investor-State Arbitration–United Kingdom
- International Trade: Export Controls & Economic Sanctions–USA
- International Trade: Trade Remedies & Trade Policy–USA
- Investigations & Enforcement (International & Cross-Border)–USA
- Life Sciences–Global: Multi-Jurisdictional; Europe-wide
- Life Sciences & Pharmaceutical Sector (International & Cross-Border)–United Kingdom; USA
- Life Sciences: Regulatory/Compliance–USA
- Privacy & Data Security–USA
- Public International Law–Global Market Leaders
Individual Lawyers
- Marcus Asner–Corporate Investigations (Latin America - International Counsel)
- John Barker–International Trade: Export Controls & Economic Sanctions (USA)
- John Bellinger–Public International Law (Global Market Leaders)
- Lawton Camp–Capital Markets: Securitization: ABS (USA)
- Maria Chedid–International Arbitration: Counsel (USA)
- Henry Clinton-Davis–Employment (United Kingdom)
- Whitney Debevoise–Capital Markets (Latin America - International Counsel); Capital Markets: Debt & Equity (USA)
- Paolo Di Rosa–Arbitration (International) (Global Market Leaders; Latin America - International Counsel; USA); International Arbitration: Counsel (USA)
- Niels Ersbøll–Competition: EU (Belgium)
- Deborah Feinstein–Competition/Antitrust (USA)
- Jonathan Gleklen–Competition/Antitrust (USA)
- Patricio Grané Labat–Arbitration (International) (Latin America - International Counsel)
- Axel Gutermuth–Competition: EU (Belgium)
- Luc Gyselen–Competition: EU (Belgium)
- Jeffrey Handwerker–Life Sciences: Regulatory/Compliance (USA)
- Gregory Harrington–Banking & Finance (Latin America - International Counsel; USA)
- Mélida Hodgson–Arbitration (International) (Latin America - International Counsel); International Arbitration: Counsel (USA)
- Steven Kaplan–Corporate M&A (International & Cross-Border) (USA)
- Jun Hee Kim–Dispute Resolution: International Firms (South Korea)
- Daniel Kracov–Life Sciences: Regulatory/Compliance (USA)
- James Lee–Dispute Resolution: International Firms (South Korea)
- Ronald Lee–Privacy & Data Security (USA)
- Charlotte Mallorie–Commercial and Corporate Litigation (United Kingdom)
- Jonathan Martel–Climate Change (Global Market Leaders)
- Hilton Mervis–Commercial and Corporate Litigation (United Kingdom)
- Saul Morgenstern–Competition/Antitrust (USA)
- Henry Morriello–Capital Markets: Securitization (USA)
- J. David Park–International Trade (South Korea); International Trade/WTO (Asia-Pacific Region); International Trade: Trade Remedies & Trade Policy (USA)
- Nancy Perkins–Privacy & Data Security (USA)
- David Reed– Dispute Resolution: International Arbitration (United Kingdom)
- Sandra Rizzo–Energy: Electricity (Regulatory & Litigation) (USA)
- John Tan–Corporate Investigations/Anti-Corruption (International Firms) (China)
- Monty Taylor–Dispute Resolution: International Arbitration (United Kingdom)
- Christopher Willott–Banking & Finance (International Firms) (Brazil)
- Matthew Wolf–Intellectual Property: Patent (USA); Life Sciences: IP/Patent Litigation (USA)
- Pamela Yates–Litigation: Trial Lawyers (USA)